Square Free

Question

Remove 4 pieces from the above position.. then place them back on any free squares of the chessboard so that no square can be formed by any four pieces on corners of a square . Which pieces to choose and where to position them?

Spoiler

This is base on my posted question : " Anti Square" .About most number of pieces on chess board without forming a square. Yet 34 may not be the maximum.

Share this post

Link to post

Share on other sites

I myself did not own the 34 pieces solution. Someones code did it; like placing 3 marks randomly.. then one by one marking every square and Tested if it is 4th corner or not..My original manual solution is just 31 pieces thats why I posted before using a chess set 32 pieces

Share this post

Link to post

Share on other sites

I shall stand with a total of 12 squares since I've also found that figure later this afternoon, but I only found 27 pieces involved (12 being part of one or more squares). I still have to compare your 28 pieces with my 27 to see the discrepancy!